111011012210220 has 96 divisors (see below), whose sum is σ = 311613705317376. Its totient is φ = 29528404646400.

The previous prime is 111011012210167. The next prime is 111011012210227. The reversal of 111011012210220 is 22012210110111.

It is a happy number.

It is a super-2 number, since 2×111011012210220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111011012210220.

It is not an unprimeable number, because it can be changed into a prime (111011012210227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130972227 + ... + 131817093.

It is an arithmetic number, because the mean of its divisors is an integer number (3245976097056).

Almost surely, 2^{111011012210220} is an apocalyptic number.

111011012210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011012210220 is an abundant number, since it is smaller than the sum of its proper divisors (200602693107156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011012210220 is a wasteful number, since it uses less digits than its factorization.

111011012210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850391 (or 850389 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111011012210220 its reverse (22012210110111), we get a palindrome (133023222320331).

The spelling of 111011012210220 in words is "one hundred eleven trillion, eleven billion, twelve million, two hundred ten thousand, two hundred twenty".